5305-00-151-7979
Close Tolerance Screw
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Official Item Classification
- Name
- Close Tolerance Screw
- (NSN) National Stock Number
- 5305-00-151-7979
- (FSG) Federal Supply Group
- 53 Hardware and Abrasives
- (FSC) Federal Supply Classification
- 5305 Screws
- (INC) Item Name Code
- 29294
- (FIIG) Federal Item Identification Guide
- A003B0
- Date
- 11/13/1970 (55 years ago)
0.640 inches minimum and 0.687 inches maximum fastener length, 0.406 inches nominal thread length, flat countersunk head style, 3a thread class, right-hand thread direction
Specs & Compatibility
3a
right-hand
0.406 inches nominal
0.640 inches minimum and 0.687 inches maximum
flat countersunk
0.3765 inches minimum and 0.3813 inches maximum
0.1885 inches minimum and 0.1895 inches maximum
high-torque
0.190 inches
0.240 inches minimum and 0.260 inches maximum
32
99.0 degrees minimum and 101.0 degrees maximum
iron alloy 660 overall
ams 5731 assn std single material response overall
cadmium and chromate overall
qq-p-416 ty 2, cl 3 fed spec single treatment response overall
unf
Regulatory Compliance
Precious metal content is unknown
The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
0029294
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